Golf putter

ABSTRACT

The invention relates to a putter head for a golf putter and to a golf putter that includes the putter head and a putter shaft secured to the putter head. The putter head includes a first head part, that defines the striking face of the putter, and a second head part that is located operatively rearwardly of the first head part and that is displaceable on guide rods with respect to the first head part along a line extending substantially perpendicularly to the striking face defined by the first head part. Securing screws displaceable within the second head part can engage the respective guide rods for securing the location of the head parts with respect to one another. A shaft securing formation is associated with the first head part and permits securing of a putter shaft to the putter head in different angular configurations with respect thereto.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is an U.S. national phase application under 35 U.S.C.§371 based upon co-pending International Application No.PCT/IB2005/002897 filed on Sep. 29, 2005. Additionally, this U.S.national phase application claims the benefit of priority of co-pendingInternational Application No. PCT/IB2005/002897 filed on Sep. 29, 2005and South Africa Application No. 2004/7949 filed on Oct. 1, 2004. Theentire disclosures of the prior applications are incorporated herein byreference. The international application was published on Apr. 13, 2006under Publication No. WO 2006/038077.

BACKGROUND OF THE INVENTION

1. Field of the Invention

THIS INVENTION relates to a golf putter.

2. Description of Related Art

A golf putter, which is the golf club commonly used on a putting greenwhen playing golf for striking a golf ball towards a hole in the green,conventionally includes a head and an elongate shaft having one endsecured to the head and extending from the head. The head defines astriking face and by gripping the putter via a grip, usually located onthe shaft adjacent the free end thereof, the putter can be displaced tostrike a golf ball via the striking face of the head towards a hole in aputting green. Insofar as the general configuration of a putter and themodes of use thereof are well known, these aspects are not describedfurther herein.

However, insofar as the invention relates particularly to a putter headfor a golf putter, any reference to such a head must be interpreted as areference to a body that defines the striking face at the operativeleading end thereof, with the remainder of the body extendingoperatively rearwardly from this striking face. The striking faceparticularly extends between a toe end of the putter head, which is theend operatively remote from a golfer when using the putter head as partof a putter, and a heel end, which is the end of the putter headproximate a golfer when using the putter head as part of a putter. Theshaft of the golf putter can extend from any suitable location on theputter head, the putter head generally defining a formation thatprojects therefrom and that is configured to have a shaft operativelysecured thereto.

It is well known that different putters are associated with differentcharacteristics in terms of mass, mass distribution, alignment, shaftconfiguration, and the like, and that golfers have differentrequirements in this regard. A golfer, therefore, often finds itdifficult to find a putter that meets all his requirements, particularlyin the long term when such requirements may change, and it is thus anobject of this invention to at least alleviate this problem, both inrelation to putter head requirements and the requirements of a shaft tobe associated therewith.

BRIEF SUMMARY OF THE INVENTION

According to the invention there is provided a putter head for a golfputter, which includes: a first head part that defines the striking faceof the putter; a second head part that is located operatively rearwardlyof the first head part in a configuration in which it is displaceablewith respect to the first head part along a line extending substantiallyperpendicularly to the striking face defined by the first head part;securing means for releasably securing the location of the head partswith respect to one another; and a shaft securing formation for securinga shaft to the putter head.

According to a preferred embodiment of the invention, the putter headincludes guide means that guides the displacement of the head parts withrespect to one another along the line extending substantiallyperpendicularly to the striking face defined by the first head part. Assuch, the guide means may include a pair of parallel, spaced guide rods,each guide rod having one end secured in the first head part of theputter head and extending rearwardly from the first head part along aline parallel to the line extending substantially perpendicularly to thestriking face defined by the first head part, the second head part beingslidably located on the guide rods via guide passages definedtherethrough.

For the above configuration guide means, the securing means may includea securing screw for each guide rod, each screw being displaceablewithin the second head part into abutment with its guide rod forsecuring the location of the second head part on the guide rods. Moreparticularly, each guide rod defines a set of peripheral grooves withina segment along the length thereof, each groove being engagable by theend of a securing screw for locating the second head part on the guiderods in different locations and for providing a mechanical lock betweenthe guide rods and the securing screws that lock the position of thesecond head part on the guide rods.

Still further for the above configuration guide means, the end of eachguide rod may screw into the first head part via complementary screwformations. It will thus be understood that the guide rods are separablefrom the putter head, permitting the guide rods to be interchanged withanother pair of guide rods which typically are associated with differentcharacteristics, e.g. mass characteristics, in order to provide theputter head with different mass characteristics. The putter headaccordingly may include at least one additional pair of guide rods thatis interchangeable with the pair of guide rods that serve as the guidemeans.

The shaft securing formation of the putter head may be a formationlocated on the first head part. A particular embodiment of the putterhead hence provides for the first head part to define a rear face thatis substantially parallel to and spaced operatively rearwardly from thestriking face, the shaft securing formation being located within thefirst head part on the rear face side thereof, the second head partbeing profiled to permit securing of a shaft to the first head part viathe said securing formation for any position of the second head partwith respect to the first head part.

The securing formation may permit releasable engagement of a shaft withthe first head part via a complementary formation provided at the end ofthe shaft to be secured to the first head part. As such, the securingformation and the complementary formation provided at the end of a shaftto be secured to the first head part may include an adjustmentarrangement for adjusting the angle between the shaft and the first headpart about an axis parallel to the said line extending substantiallyperpendicularly to the striking face defined by the first head part. Theadjustment arrangement particularly permits adjustment of the said anglebetween the shaft and the first head part and about the said axisbetween positions that will permit use of a putter including the putterhead by a golfer that putts left handed and by a golfer that putts righthanded.

Further according to the invention, the complementary formation referredto may be a formation provided as part of the putter head and thecomplementary formation may thus permit securing of any selected shaftthereto. Insofar as the complementary formation may permit differentshafts to be secured thereto, securing of, for example, different lengthshafts to the putter head is conveniently accommodated.

Still further according to the invention, the second head part of theputter head may be profiled to define formations that can facilitateputter alignment during use thereof. Formations associated with putterheads for this purpose are already well known and, as such, suitableformations for the above purpose are not defined further herein.

The first head part and the second head part of the putter head may bedisplaceable between a position in which the two parts abut one anotherand a plurality of positions in which the parts are spaced from oneanother. Thereby, the mass distribution within the putter head can beconveniently adjusted for accommodating particular golfer requirements.

Still further, the first head part may have an insert formation locatedtherein that defines the striking face thereof. Once again, differentgolfer requirements may thereby be accommodated.

The putter head of the invention may be associated also with variousother formations and features that are commonly associated withconventional putters in order to accommodate particular putterrequirements.

The invention extends also to a putter which includes: a putter headincluding a first head part that defines the striking face of theputter; a second head part that is located operatively behind the firsthead part in a configuration in which it is displaceable with respect tothe first head part along a line extending substantially perpendicularlyto the striking face defined by the first head part; securing means forreleasably securing the location of the head parts with respect to oneanother; and a shaft securing formation for securing a shaft to theputter head; and a putter shaft having one end secured to the putterhead via the shaft securing formation thereof and having a grip locatedon the other end thereof.

The putter head of the golf putter of the invention particularlyincludes all the features of the putter head, in accordance with thepresent invention.

Insofar as the putter head may include a complementary formation thatcan cooperate with the shaft securing formation for securing a shaft tothe putter head, the shaft of the putter may be replaceably secured tothe complementary formation of the putter head to be interchangeablewith different length putter shafts.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

Further features of the invention, including the benefits associatedwith the invention, are described in more detail hereinafter withreference to an example of a putter head, in accordance with theinvention, which is illustrated in the accompanying diagrammaticdrawings. In the drawings:

FIG. 1 shows an exploded three-dimensional view of a putter head for agolf putter, in accordance with the invention;

FIG. 2 illustrates in plan view the operation of the guide rods andsecuring screws of the putter head of FIG. 1;

FIG. 3 illustrates in rear end view the mode of securing a putter shaftto the first head part of the putter head of FIG. 1, with the shaftdisposed in a first optional configuration thereof;

FIG. 4 illustrates in rear end view the putter shaft and the first headpart of the putter head as shown in FIG. 3, with the shaft disposed in asecond optional configuration thereof;

FIG. 5 shows in three-dimensional view the putter head of FIG. 1 in anassembled configuration thereof, with the first head part and the secondhead part of the putter head in a first operative configuration thereof;

FIG. 6 shows in three-dimensional view the putter head as shown in FIG.5, but with the first head part and the second head part thereofdisposed in a second operative configuration thereof; and

FIG. 7 shows a three-dimensional view of an alternative embodiment firsthead part for the putter head as shown in FIG. 1.

DETAILED DESCRIPTION OF THE INVENTION

Referring initially to FIGS. 1 to 6 of the drawings, a putter head for agolf putter, in accordance with the invention, is designated generallyby the reference numeral 10. The putter head 10 includes a first headpart 12 and a second head part 14, the two head parts being displaceablylocated with respect to one another in a configuration as describedhereafter.

The first head part 12 defines the striking face 16 of the putter headthat, as for conventional putters, is a substantially planar face. Thisstriking face 16 forms the operative leading face of the putter head,whereby a golf ball is struck when performing a putting stroke.

The first head part 12 defines also a rear face 20, that is disposedparallel to and rearwardly spaced from the striking face 16. Twoelongate guide rods 22 serve to guide displacement of the second headpart 14 with respect to the first head part 12 as described hereafter,particularly along a line extending substantially perpendicularly to thestriking face 16 defined by the first head part 12. More particularly,the first head part 12 defines two threaded bores 24 on the operativerear face side 20 thereof, the guide rods 22 defining threaded leadingends 26 that can operatively screw into the respective bores 24. Whenscrewed into the bores 24, the guide rods 22 will be axially alignedwith the said line extending substantially perpendicularly to thestriking face 16 defined by the first head part 12.

The second head part 14 is slidably located on the guide rods 22 viasuitable guide passages 28 that are defined therethrough, thus providingfor sliding displacement of the second head part 14 on the guide rods22. The two head parts particularly are displaceable with respect to oneanother between a first position, in which the operative front face 30of the second head part 14 abuts against the operative rear face 20 ofthe first head part 12 and a plurality of positions in which the twohead parts are spaced apart (see respectively FIGS. 5 and 6 of thedrawings).

As is clearly illustrated in FIG. 2 of the drawings, each guide rod 22defines a set of peripheral grooves 32 therein along a segment of thelength thereof. The putter head 10 includes also two securing screws 34,each screw being displaceable in a complementary threaded passage 36defined therefor within the second head part 14, so that the leading endof the securing screw 34 can be displaced into abutment with one of theguide rods 22 and particularly into mechanical engagement with one ofthe peripheral grooves 32 in the guide rod 22. As such, the second headpart 14 can be mechanically locked in different positions with respectto the first head part 12, with its position being determined by thelocation of the peripheral grooves 32 with respect to the securingscrews 34, i.e. being determined by the position of the second head part14 on the guide rods 22.

Referring particularly also to FIGS. 3 and 4 of the drawings, the firsthead part 12 of the putter head 10 has a shaft securing formation, forsecuring a shaft to the putter head, formed within the rear face 20thereof. The shaft securing formation includes particularly a circularrecess 38 which is located midway between opposite ends of the firsthead part 12 and two sets of three equally spaced threaded bores 40,extending further into the first head part 12 from the base of therecess 38.

The putter head 10 includes further a complementary formation 42 thatcan cooperate with the formation 38 for securing a putter shaft (notshown) to the putter head 10. The complementary formation 42 includes acircular disc-like body 44 that rotatably fits into the circular recess38 and that has three slot-like apertures 46 formed therein that will bedisposed in register with one of the sets of threaded apertures 40 indifferent angular positions of the body 44 within the recess 38, as isdescribed in more detail hereafter.

The disc-like body 44 has a shaft engagement formation 48 extendingtherefrom as shown, the shaft engagement formation 48 defining a spigotformation 43 at the end 50 thereof which is configured to receive theend of a putter shaft (not shown) thereon and which will permit a puttershaft to thereby be secured to the putter head 10. The mode in which aputter shaft is secured to the shaft engagement formation 48 via thespigot formation 43 is conventional as for known putters. A putter shaftis thus secured to the shaft engagement formation 48 in a configurationin which it remains separable therefrom, in order to permit replacementwith a different shaft.

Referring now particularly to FIG. 3 of the drawings, with the shaftengagement formation 48 orientated with respect to the first head part12 in the configuration as shown, the shaft engagement formation 48 canbe secured to the first head part 12 by means of three securing screws52 that can screw into one of the sets of threaded bores 40 and engagethe disc-like body 44, to thereby secure its location with respect tothe first head part 12. As is clear from the drawing, by the angulardisplacement of the shaft engagement formation 48 between limitsdetermined by the slot-like apertures 46 defined in the body 44, theangular position of the shaft engagement formation 48 and, therefore, ashaft secured thereto, can be adjusted, thus to accommodate particulargolfer requirements. The limits of adjustment particularly aredetermined by formal rules that are associated with the design of golfputters and that require there to be a particular angular relationshipbetween the shaft of a golf putter and its associated putter head.

The angular relationship between a putter shaft secured to the shaftengagement formation 48 and the first head part 12 of the putter head 10as shown in FIG. 3 particularly accommodates putting by right handedgolfers. In order to accommodate putting by left handed golfers, theshaft engagement formation 48 can be displaced to a range of angularpositions as determined by the slot-like apertures 46 in relation totheir position with respect to the second set of threaded bores 40, themode of angular adjustment of the shaft engagement formation 48 and,therefore, of a shaft, with respect to the first head part 12, beingeffected merely by loosening and fastening of the securing screws 52.The particular relationship between the slot-like apertures 46 and thetwo sets of threaded bores 40 is such that only “legal” angularrelationships are permitted, as determined by the formal rules that areassociated with the design of golf putters, although accommodatingparticularly both left handed and right handed golfers.

As is clearly illustrated particularly also in FIGS. 5 and 6 of thedrawings, the second head part 14 of the putter head 10 is profiled todefine a space 54 between the two head parts, 12 and 14, which space isdisposed centrally behind the centre of the first head part 12 and whichthus serves to accommodate the location of the shaft engagementformation 48 with respect to the putter head. The space 54 also islocated centrally behind the centre of percussion defined by thestriking face 16 as referred to above, this space thus serving also toprovide for a desired mass distribution of the second head part 14behind the first head part 12.

Insofar as the overall mass and the mass distribution associated with aputter head is considered very important to particular golfers, thedisplacement of the first head part 12 and the second head part 14 ofthe putter head 10 serves to accommodate various such requirements. Itis further envisaged in this regard that the putter head 10 may beprovided with additional pairs of guide rods that are selectivelyinterchangeable with the guide rods 22, the additional guide rods beingformed of different materials and of a different mass, so that throughinterchanging guide rods, further requirements of particular golfers canbe accommodated. Although it is envisaged that a particular pair ofguide rods used would usually have the same mass, it is envisaged inthis regard that a pair of guide rods can be used where the rods have adifferent mass to one another, thus altering the mass distribution onthe operative toe end and heel end of the putter head. In practice, thiscan reduce a tendency by a golfer to either push/slice a putt or topull/hook a putt.

The second head part 14 of the putter head 10 further is profiled toaccommodate the alignment of the putter head when used as a putter, i.e.with a shaft secured thereto, in order to strike a ball in a desireddirection. The channel formation 56 defined in the operative top faceside of the second head part 14 is particularly configured and directedfor this purpose.

Particularly in relation to the adjustment of the spacing between thefirst head part 12 and the second head part 14 of the putter head 10, itis envisaged that by increasing the spacing between the two head parts,the mass distribution within the putter head can be adjusted to induce agolf ball to be displaced with a very slight upward trajectory to induceeffective roll of a ball on a putting green, clearly as determined alsoby the putting stroke that is employed by the associated golfer.

By accommodating interchanging of putter shafts, it will be understoodthat particularly different length and/or different mass putter shaftscan be associated with the putter head 10, which again can accommodatethe requirements of different golfers and also allow a particular golferto interchange shafts from time to time and as may be required by him.

The putter head of the invention further may be associated with variousother features that are commonly associated with known putters in orderto provide a putter with different putting characteristics, it beingenvisaged, for example, that either one or both parts of the putter headcan be associated with removable mass inserts that can still furtheraccommodate mass and mass distribution requirements of a golfer inrelation to the putter head. Clearly, the two head parts of the putterheads can be formed of the same or different materials, while differentconfiguration striking faces also can be provided for. For example, thestriking face 16 of the first head part 12 of the putter head 10 asdescribed is a milled face, whereas, as shown in FIG. 7 of the drawings,the first head part 60 of a putter head may have a striking face 62defined by an insert element 64 that is located within a recess 66provided therefor in the front face side of the first head part 60, theinsert element providing the associated putter head with particularstriking characteristics. Clearly, the putter head of the invention asdescribed can accommodate numerous other requirements of a golfer inthis regard.

It is envisaged that the putter head of the invention will ordinarily beprovided together with two or more pairs of interchangeable guide rodsas envisaged above, while a special tool or tools, e.g. Allen keys thatcan engage Allen sockets defined respectively in the operative trailingends of the guide rods 32, of the securing screws 34 and of the securingscrews 52, also may be provided in order to facilitate the assembly andrequired adjustments within the configuration of the putter head, asrequired from time to time, keeping in mind that it is a rule of golfthat the characteristics of a putter head of a putter may not be changedwithin the course of a round of golf. The particular mechanicalconstruction of the putter head as described clearly is such thatwithout the use of the special tools, the mechanical configurationthereof is not adjustable in any way whatsoever, thus ensuring thatcontraventions of the said rule of golf cannot occur in practice.

It will further be appreciated that the overall design of the putterhead of the invention is greatly variable and that within the principlesof the invention as defined and described, many different configurationputter heads can be provided that can be associated with putter shaftsthat are secured in different locations and in different configurations.The invention extends to all such variations of putter heads for golfputters and golf putters including such putter heads, which stillincorporate the essential principles of the invention as herein definedand described.

1. A putter head system for a golf putter comprising: a first head partthat defines a striking face of a putter; a second head part that islocated operatively rearwardly of said first head part in aconfiguration in which it is displaceable with respect to said firsthead part along a line extending substantially perpendicularly to saidstriking face defined by said first head part; a securing means forreleasably securing the location of said first and second head partswith respect to one another; a shaft securing formation for securing ashaft to said putter head; and a guide means that guides thedisplacement of said first and second head parts with respect to oneanother along the line extending substantially perpendicularly to saidstriking face defined by said first head part; wherein said guide meansincludes at least two parallel, spaced guide rods, each guide rod havingone end secured in said first head part of the putter head and extendingrearwardly from said first head part along a line parallel to the lineextending substantially perpendicularly to said striking face defined bysaid first head part, said second head part being slidably located onsaid guide rods via at least two guide passages defined therethrough;wherein said securing means includes a securing screw for each saidguide rod, each said securing screw being displaceable within saidsecond head part into abutment with its respective said guide rod forsecuring the location of said second head part on said guide rods;wherein each said guide rod defines a set of peripheral grooves within asegment along the length thereof, each said groove being engagable by anend of said securing screw for locating said second head part on saidguide rods in different locations and for providing a mechanical lockbetween said guide rods and said securing screws that lock the positionof said second head part on said guide rods.
 2. The putter head asclaimed in claim 1, wherein said first head part further comprises atleast two screw formations located opposite said striking face of saidfirst head part, each of said screw formations being adapted tothreadably receive an end of said respective guide rod.
 3. The putterhead as claimed in claim 2 further comprising at least one additionalpair of guide rods that is interchangeable with said guide rods thatserve as a guide means.
 4. The putter head as claimed in claim 3,wherein said additional guide rods are of different mass to the mass ofsaid guide rods that serve as the guide means.
 5. The putter head asclaimed in claim 1, in which said shaft securing formation is located onsaid first head part.
 6. The putter head as claimed in claim 5, whereinsaid first head part defines a rear face that is substantially parallelto and spaced operatively rearwardly from said striking face, said shaftsecuring formation being located within said first head part on saidrear face side thereof, said second head part being profiled to permitsecuring of said shaft to said first head part via said securingformation for any position of said second head part with respect to saidfirst head part.
 7. The putter head as claimed in claim 6, wherein saidsecuring formation permits releasable engagement of said shaft with saidfirst head part via a complementary formation provided at an end of saidshaft to be secured to said first head part.
 8. The putter head asclaimed in claim 7, wherein said securing formation and saidcomplementary formation provided at said end of said shaft to be securedto said first head part include an adjustment arrangement for adjustingthe angle between said shaft and said first head part about an axisparallel to the said line extending substantially perpendicularly tosaid striking face defined by said first head part.
 9. The putter headas claimed in claim 8, wherein said adjustment arrangement permitsadjustment of the angle between said shaft and said first head part andabout said axis between positions that will permit use of a putterincluding said putter head by a golfer that putts left handed and by agolfer that putts right handed.
 10. The putter head as claimed in claim7, wherein said complementary formation is provided as part of saidputter head and said complementary formation permits securing of aselected shaft thereto.
 11. The putter head as claimed in claim 1,wherein said second head part is profiled to define formations thatfacilitate putter alignment during use thereof.
 12. The putter head asclaimed in claim 1, wherein said first head part and said second headpart are displaceable between a position in which said first and secondhead parts abut one another and a plurality of positions in which saidfirst and second head parts are spaced from one another.
 13. The putterhead as claimed in claim 1, wherein said striking face of said firsthead part is defined by an insert formation located therein.
 14. Aputter head system for a golf putter comprising: a first head part thatdefines a striking face of a putter, and a rear face that issubstantially parallel to and spaced operatively rearwardly from saidstriking face, said first head part having a shaft securing formationlocated within said first head part on said rear face side thereof forsecuring a shaft to said first head part, and at least two screwformations located in said rear face; a second head part that is locatedoperatively rearwardly of said first head part in a configuration inwhich it is displaceable with respect to said first head part along aline extending substantially perpendicularly to said striking facedefined by said first head part, said second head part having at leasttwo guide passages defined therethrough, said second head part beingprofiled to permit securing of said shaft to said first head part viasaid securing formation for any position of said second head part withrespect to said first head part; at least two parallel, spaced guiderods, each of said guide rods having a set of peripheral grooves withina segment along the length thereof, and an end threadably secured insaid respective screw formation of said first head part of said putterhead and extending rearwardly from said first head part along a lineparallel to the line extending substantially perpendicularly to saidstriking face defined by said first head part, said second head partbeing slidably located on said guide rods via said guide passagesdefined through said second head part; and a securing means forreleasably securing the location of said first and second head partswith respect to one another, said securing means having a securing screwfor each said guide rod, each said securing screw being displaceablewithin said second head part into engagement with at least one of saidguide rod grooves by an end of said securing screw for locating saidsecond head part on said guide rods in different locations and forproviding a mechanical lock between said guide rods and said securingscrews that lock the position of said second head part on said guiderods.
 15. A golf putter system comprising: a putter head having a firsthead part that defines a striking face of said putter, a second headpart that is located operatively behind said first head part in aconfiguration in which it is displaceable with respect to said firsthead part along a line extending substantially perpendicularly to saidstriking face defined by said first head part, and a securing means forreleasably securing the location of said first and second head partswith respect to one another, a shaft securing formation, and a guidemeans that guides the displacement of said first and second head partswith respect to one another along the line extending substantiallyperpendicularly to said striking face defined by said first head part;and a putter shaft having one end secured to said putter head via saidshaft securing formation thereof, said putter shaft having a griplocated on an end opposite thereof; wherein said shaft securingformation permits releasable engagement of said putter shaft with saidfirst head part via a complementary formation provided at an end of saidshaft to be secured to said first head part, and wherein said puttershaft is replaceably secured to said complementary formation of saidputter head to be interchangeable with different length putter shafts;wherein said guide means includes at least two parallel, spaced guiderods, each guide rod having one end secured in said first head part ofthe putter head and extending rearwardly from said first head part alonga line parallel to the line extending substantially perpendicularly tosaid striking face defined by said first head part, said second headpart being slidably located on said guide rods via at least two guidepassages defined therethrough; wherein said securing means includes asecuring screw for each said guide rod, each said securing screw beingdisplaceable within said second head part into abutment with itsrespective said guide rod for securing the location of said second headpart on said guide rods; wherein each said guide rod defines a set ofperipheral grooves within a segment along the length thereof, each saidgroove being engagable by an end of said securing screw for locatingsaid second head part on said guide rods in different locations and forproviding a mechanical lock between said guide rods and said securingscrews that lock the position of said second head part on said guiderods.
 16. The putter head as claimed in claim 15, wherein said securingformation and said complementary formation provided at said end of saidshaft to be secured to said first head part include an adjustmentarrangement for adjusting the angle between said shaft and said firsthead part about an axis parallel to the said line extendingsubstantially perpendicularly to said striking face defined by saidfirst head part.
 17. The putter head as claimed in claim 16, whereinsaid adjustment arrangement permits adjustment of the angle between saidshaft and said first head part and about said axis between positionsthat will permit use of a putter including said putter head by a golferthat putts left handed and by a golfer that putts right handed.
 18. Theputter head as claimed in claim 17, wherein said complementary formationis provided as part of said putter head and said complementary formationpermits securing of a selected shaft thereto.